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Hesitation off boost

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Old Feb 11, 2002 | 09:15 AM
  #1  
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Cool

Rich it's 'coz you've got a door missing mate

[Edited by DocJock - 11/2/2002 9:15:54 AM]
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Old Nov 1, 2002 | 12:31 PM
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Richard Askew
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..from 2500 - 2800 RPM im getting slight hesitation and jerkiness before the turbo spools up.. after than it pulls cleanly with no visible flat spots.

The car is a MY99 UK 4 door with a Hayward and Scott decat centre and rear box, 20,000 miles and FSH. It was doing this before the zorst was done. I've had it on a select monitor which showed slight variations from the Lambda sensor in the history but no problems now.

Anyone have any ideas as to what has caused this? and any ways of re-mapping/replacing the standard ECU (Im thinking possible ECUTEK?)

Please give me some help!!

Cheers

R
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Old Nov 1, 2002 | 12:44 PM
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Richard,

Do a search on the word "hesitation" you'll find loads of info............all of which are no real help as there is now "cure" that is known.
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Old Nov 1, 2002 | 12:48 PM
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...have searched to no avail.. thought someone might be able to add new info..
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Old Nov 1, 2002 | 01:16 PM
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Rich,

Hows it going???

I had this problem on mine --- took it to the dealers 'they all do that sir'

Bought an uprated fuel pump from Mark Aigin, and i no longer have the problems. (I bought the pump because the old one was stuggling to supply enough fuel at WOT, the loss of 'jerkiness' was a bi-product of the new pump!!)



Iain
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Old Nov 1, 2002 | 07:05 PM
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Richard
I experience this problem on my MY2000 only when cold and on light throttle but disappears when warmed up.I have seen variuos threads on this one and the general feeling is that its normal when cold.I have just had my 30,000 service and this made no difference.
Tony....
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Old Nov 2, 2002 | 11:12 AM
  #7  
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I agree with powerman, however every now and then it is a touch jerky when warm.
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Old Nov 2, 2002 | 12:03 PM
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Askew !

The standard MY99/MY00 fuel maps are slightly lean at very low revs. Add an induction kit, and it gets even leaner.

It's one of the first things Stephen Done noticed on his car before he started the EcuTek adventure.

It's nothing to worry about, but can be fixed with a good (and I'd prefer custom) remap. If you can spare the money, Ecutek will solve this.

But you are still missing a door though
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